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Author Question: Why do felsic rocks typically have the lightest color? A) They contain olivine and pyroxene. B) ... (Read 105 times)

leilurhhh

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Why do felsic rocks typically have the lightest color?
 
  A) They contain olivine and pyroxene.
  B) They contain pyroxene, amphibole, and plagioclase feldspar.
  C) They contain quartz, mica, amphibole, sodium-rich plagioclase feldspar, and potassium feldspar.
  D) They contain olivine, pyroxene, and calcium-rich plagioclase feldspar.

Question 2

What type of crystal texture is formed when magma cools slowly within warm rock underground?
 
  A) aphanitic
  B) porphyritic
  C) andesitic
  D) phaneritic



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stanleka1

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Answer to Question 1

Answer: C

Answer to Question 2

Answer: D




leilurhhh

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Reply 2 on: Jul 16, 2018
Gracias!


dantucker

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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